Darrie Hutchison, a registered nurse at the Wichita Clinic in Wichita, Kan., draws a dose of mumps-measles-rubella – or MMR – vaccine in April 2006.
Darrie Hutchison, a registered nurse at the Wichita Clinic in Wichita, Kan., draws a dose of mumps-measles-rubella – or MMR – vaccine in April 2006. Mike Hutmacher Associated Press file
Darrie Hutchison, a registered nurse at the Wichita Clinic in Wichita, Kan., draws a dose of mumps-measles-rubella – or MMR – vaccine in April 2006. Mike Hutmacher Associated Press file